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-0.5°
Slight frost tonight at 05:00. Frost temperatures between tomorrow 04:00 – 06:00. Bring in or cover sensitive plants
Method
Rel. frost
Last spring frost (0°C) 30 Mar Frost 9 of 10 years · 20 years of data
Frost-free season 195 days 30 Mar – 11 Oct
Probability that frost is over

10% = Half of years are frost-free by this date. More about frost & season →

Custom date

Vegetables

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Cauliflower
Brassica oleracea (Botrytis-gruppen)
13 – 27 Mar
5-7 wk
1 May
5 wk after
24 Mar
1 wk before
Broccoli
Brassica oleracea (Italica-gruppen)
8 – 22 Mar
4-6 wk
19 Apr
3 wk after
24 Mar
1 wk before
Chili pepper
Capsicum annuum
Greenhouse
15 Feb – 15 Mar
8-12 wk
10 May
6 wk after
Kale
Brassica oleracea (Curly Kale-gruppen)
10 – 24 Jan
5-7 wk
28 Feb
4 wk before
17 Mar
2 wk before
Cucumber
Cucumis sativus
Greenhouse
12 – 19 Apr
3-4 wk
10 May
6 wk after
Florence Fennel
Foeniculum vulgare
Greenhouse
5 – 12 Apr
4-5 wk
10 May
6 wk after
12 Apr
2 wk after
Butter bean
Phaseolus lunatus
Greenhouse
12 – 19 Apr
3-4 wk
10 May
6 wk after
Onion
Allium cepa (Cepa-gruppen)
5 Jan – 2 Feb
8-12 wk
30 Mar
Vid frost
12 Apr
2 wk after
Onion (sets)
Allium cepa (Cepa-gruppen)
12 Apr
2 wk after
12 Apr
2 wk after
Sweetcorn
Zea mays
Fleece
17 – 24 Apr
3-4 wk
15 May
7 wk after
Chard
Beta vulgaris (Flavescens-gruppen)
3 – 10 Apr
3-4 wk
1 May
5 wk after
12 Apr
2 wk after
Carrot
Daucus carota subsp. sativus var. sativus
17 Mar
2 wk before
Cavolo nero
Brassica oleracea (Palm Kale-gruppen)
10 – 24 Jan
5-7 wk
28 Feb
4 wk before
17 Mar
2 wk before
Potato
Solanum tuberosum
21 Feb – 7 Mar
4-6 wk
4 Apr
1 wk after
4 Apr
1 wk after
Ornamental Kale
Brassica oleracea (Ornamental-gruppen)
10 – 24 Jan
5-7 wk
28 Feb
4 wk before
24 Mar
1 wk before
Pumpkin
Cucurbita pepo
Greenhouse
12 – 19 Apr
3-4 wk
10 May
6 wk after
Beetroot
Beta vulgaris (Conditiva-gruppen)
3 – 10 Apr
3-4 wk
1 May
5 wk after
12 Apr
2 wk after
Red Cabbage
Brassica oleracea (Red Cabbage-gruppen)
8 – 22 Mar
4-6 wk
19 Apr
3 wk after
Lettuce
Lactuca sativa
21 – 28 Feb
3-4 wk
21 Mar
1 wk before
24 Mar
1 wk before
Savoy Cabbage
Brassica oleracea (Savoy Cabbage-gruppen)
7 – 21 Feb
4-6 wk
21 Mar
1 wk before
Shallot (bulbs)
Allium cepa (Aggregatum-gruppen)
17 Feb – 3 Mar
2-4 wk
17 Mar
2 wk before
17 Mar
2 wk before
Shallot (sets)
Allium cepa (Aggregatum-gruppen)
24 Mar
1 wk before
24 Mar
1 wk before
Spinach
Spinacia oleracea
10 – 17 Feb
3-4 wk
10 Mar
3 wk before
10 Mar
3 wk before
Sweet potato
Ipomoea batatas
1 – 15 May
4-6 wk
12 Jun
11 wk after
Tomato
Solanum lycopersicum
Fleece
15 – 29 Mar
6-8 wk
10 May
6 wk after
Tomatillo
Physalis ixocarpa
French bean
Phaseolus vulgaris
Fleece
12 – 26 Apr
2-4 wk
10 May
6 wk after
25 Apr
4 wk after
White Cabbage
Brassica oleracea (White Cabbage-gruppen)
8 – 22 Mar
4-6 wk
19 Apr
3 wk after
Pea
Pisum sativum
10 – 17 Feb
3-4 wk
10 Mar
3 wk before
24 Mar
1 wk before
Current date Soon Date passed

Herbs

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Basil
Ocimum basilicum
Fleece
3 – 17 Apr
4-6 wk
15 May
7 wk after
Lemon balm
Melissa officinalis
19 Jan – 2 Feb
8-10 wk
30 Mar
Vid frost
25 Apr
4 wk after
Dill
Anethum graveolens
24 Mar
1 wk before
Chives
Allium schoenoprasum
3 – 17 Jan
6-8 wk
28 Feb
4 wk before
24 Mar
1 wk before
Spearmint
Mentha spicata
16 Dec – 13 Jan
8-12 wk
10 Mar
3 wk before
25 Apr
4 wk after
Coriander
Coriandrum sativum
12 Apr
2 wk after
Sage
Salvia officinalis
20 Feb – 6 Mar
8-10 wk
1 May
5 wk after
Thyme
Thymus vulgaris
8 – 22 Feb
8-10 wk
19 Apr
3 wk after
Oregano
Origanum vulgare
11 – 25 Feb
6-8 wk
8 Apr
1 wk after
25 Apr
4 wk after
Parsley
Petroselinum crispum
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
24 Mar
1 wk before
Rosemary
Salvia rosmarinus
23 Jan – 20 Feb
10-14 wk
1 May
5 wk after
Current date Soon Date passed

Annual flowers

Plant Sow indoors Transplant Direct sow
Date Growing timeGrow. time Date Rel. frost Date Rel. frost
Morning glory
Ipomoea tricolor
Season too short
27 Apr – 4 May
3-4 wk
25 May
8 wk after
Cornflower
Centaurea cyanus
10 Mar
3 wk before
24 Mar
1 wk before
Statice
Limonium sinuatum
Fleece
1 – 15 Mar
8-10 wk
10 May
6 wk after
Sweet William
Dianthus barbatus
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
4 Apr
1 wk after
Snow-on-the-mountain
Euphorbia marginata
Fleece
15 – 29 Mar
6-8 wk
10 May
6 wk after
15 May
7 wk after
Dahlia
Dahlia × pinnata
23 Mar – 6 Apr
6-8 wk
18 May
7 wk after
Dahlia (tubers)
Dahlia × pinnata
28 Feb – 28 Mar
4-8 wk
25 Apr
4 wk after
25 Apr
4 wk after
Foxglove
Digitalis purpurea
30 Dec – 13 Jan
8-10 wk
10 Mar
3 wk before
12 Apr
2 wk after
Busy lizzie
Impatiens walleriana
Fleece
2 – 30 Mar
8-12 wk
25 May
8 wk after
Creeping zinnia
Sanvitalia procumbens
Fleece
15 – 29 Mar
6-8 wk
10 May
6 wk after
Hyacinth bean
Dolichos lablab
Season too short
13 – 27 Apr
4-6 wk
25 May
8 wk after
Chinese lantern
Physalis alkekengi
20 Feb – 6 Mar
8-10 wk
1 May
5 wk after
Love in a mist
Nigella damascena
24 Mar
1 wk before
Strawflower
Xerochrysum bracteatum
Fleece
15 – 29 Mar
6-8 wk
10 May
6 wk after
15 May
7 wk after
Tall verbena
Verbena bonariensis
6 Feb – 6 Mar
8-12 wk
1 May
5 wk after
Cardoon
Cynara cardunculus
Season too short
31 Jan – 28 Feb
8-12 wk
25 Apr
4 wk after
Regal-foxtail
Ptilotus nobilis
Greenhouse
15 Feb – 15 Mar
8-12 wk
10 May
6 wk after
Globe amaranth
Gomphrena globosa
Greenhouse
15 – 29 Mar
6-8 wk
10 May
6 wk after
Corn poppy
Papaver rhoeas
24 Mar
1 wk before
Snapdragon
Antirrhinum majus
27 Dec – 24 Jan
8-12 wk
21 Mar
1 wk before
4 Apr
1 wk after
Flossflower
Ageratum houstonianum
Greenhouse
1 – 15 Mar
8-10 wk
10 May
6 wk after
Sweet pea
Lathyrus odoratus
13 Jan – 3 Feb
5-8 wk
10 Mar
3 wk before
Stock
Matthiola incana
24 Jan – 7 Feb
6-8 wk
21 Mar
1 wk before
12 Apr
2 wk after
Wormwood
Artemisia absinthium
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
12 Apr
2 wk after
Mexican sunflower
Tithonia rotundifolia
Greenhouse
29 Mar – 12 Apr
4-6 wk
10 May
6 wk after
Pansy
Viola × wittrockiana
20 Dec – 3 Jan
8-10 wk
28 Feb
4 wk before
4 Apr
1 wk after
Petunia
Petunia
Fleece
15 Feb – 15 Mar
8-12 wk
10 May
6 wk after
Scabious
Scabiosa atropurpurea
6 – 20 Mar
6-8 wk
1 May
5 wk after
10 May
6 wk after
Zinnia
Zinnia elegans
Fleece
29 Mar – 12 Apr
4-6 wk
10 May
6 wk after
Common morning glory
Ipomoea purpurea
Greenhouse
5 – 19 Apr
3-5 wk
10 May
6 wk after
Cosmos
Cosmos bipinnatus
Fleece
29 Mar – 12 Apr
4-6 wk
10 May
6 wk after
25 Apr
4 wk after
Scarlet milkweed
Asclepias curassavica
Season too short
2 – 30 Mar
8-12 wk
25 May
8 wk after
Bee balm
Monarda didyma
5 Jan – 2 Feb
8-12 wk
30 Mar
Vid frost
25 Apr
4 wk after
Yarrow
Achillea millefolium
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
12 Apr
2 wk after
Safflower
Carthamus tinctorius
10 Mar
3 wk before
24 Mar
1 wk before
Iceland poppy
Papaver nudicaule
3 – 17 Jan
6-8 wk
28 Feb
4 wk before
17 Mar
2 wk before
Bishop's flower
Ammi majus
3 – 17 Mar
4-6 wk
14 Apr
2 wk after
12 Apr
2 wk after
Drumsticks
Pycnosorus globosus
Greenhouse
15 Feb – 1 Mar
10-12 wk
10 May
6 wk after
Sunflower
Helianthus annuus
Fleece
12 – 19 Apr
3-4 wk
10 May
6 wk after
12 Apr
2 wk after
China aster
Callistephus chinensis
Fleece
15 – 29 Mar
6-8 wk
10 May
6 wk after
25 Apr
4 wk after
Annual phlox
Phlox drummondii
15 – 29 Mar
6-8 wk
10 May
6 wk after
10 May
6 wk after
Hollyhock
Alcea rosea
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
12 Apr
2 wk after
Delphinium
Delphinium elatum
25 Jan – 22 Feb
8-12 wk
19 Apr
3 wk after
25 Apr
4 wk after
African marigold
Tagetes erecta
Fleece
15 – 29 Mar
6-8 wk
10 May
6 wk after
Black-eyed Susan
Rudbeckia hirta
6 – 20 Mar
6-8 wk
1 May
5 wk after
10 May
6 wk after
Woodland sage
Salvia nemorosa
28 Jan – 11 Feb
8-10 wk
8 Apr
1 wk after
25 Apr
4 wk after
Black-eyed susan vine
Thunbergia alata
Greenhouse
1 – 29 Mar
6-10 wk
10 May
6 wk after
California goldenpoppy
Eschscholzia californica
24 Mar
1 wk before
Painted tongue
Salpiglossis sinuata
Fleece
1 – 15 Mar
8-10 wk
10 May
6 wk after
Water forget-me-not
Myosotis scorpioides
13 – 27 Jan
6-8 wk
10 Mar
3 wk before
12 Apr
2 wk after
Current date Soon Date passed